JPS632505A - Edger device - Google Patents

Abstract

PURPOSE:To decrease the edge drop of a rolling material without generating buckling by providing devices for adjusting the gap between vertical rolls and press rolls and cylinders for pressing the vertical rolls with a fixed pressure by moving frame bodies in the transverse direction of a rolling materials to the frame bodies. CONSTITUTION:A base frame 9 moves to the required position in the transverse direc tion of the rolling material 1 when a screw shaft 13 is rotated by driving a motor 12 during cross rolling. The gap G between the vertical rolls 20 and the side faces of the upper and lower press rolls 33, 34 is adjusted according to the thickness and material of the sheet by sliding the right and left frame bodies 15 in the transverse direction of the rolling material 1 by the cylinders 16 to bring the frame bodies 15 to the prescribed position and to adjust the right and left vertical rolls 20 to the prescribed spacing, then rotating a nut 26 to move the screw shaft 24 forward and backward so as to slide vertical roll journal boxes 18 in the transverse direction of the rolling material. The upper press rolls 28, 33 are then lowered by the cylinders 27, 31 so that the gaps of the upper and lower press rolls 28, 33, 29, 34 coincide with the sheet thickness. The fed rolling material is cross rolled between the right and left verticals rolls 20 and the upper and lower rolls 28, 33, 29, 34. The pressure oil of the cylinders 16 is controlled to the constant pressure in this stage.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides an edger that can reliably prevent buckling and improve edge drop even when meandering or width fluctuation occurs in a thin plate. It is related to the device.

[Prior Art] Conventionally, width reduction of a rolled material is generally performed by a width rolling mill provided near a roughing mill on the upstream side of a rolling line. However, when width reduction is performed on the upstream side of the rolling line, edge drops occur at both ends of the rolled material due to the thickness reduction performed on the downstream side of the rolling line, reducing the cross-sectional shape of the plate and reducing the target width of the product after rolling. There were problems such as the error in the obtained plate width becoming large and the plate width accuracy decreasing. Therefore, in recent years, various studies have been conducted to reduce edge drop and improve strip width accuracy by installing an edger device between finishing stands on the downstream side of the rolling line and performing width reduction with the edger device. .

Therefore, if an edger device is installed between finishing stands to perform width reduction, the thickness of the rolled material has become thinner due to thickness reduction on the upstream side, so there is a risk that buckling may occur in the material due to width reduction. There is. Therefore, in order to prevent buckling, a presser roll is installed near the vertical roll of the edger machine to press both ends of the rolled material from above and below in the width direction, so that both ends of the rolling mill width are slightly moved outward from the presser roll in the width direction. It has been proposed to press both ends of the rolled material using presser rolls so that they protrude, thereby reducing the width.

[Problems to be Solved by the Invention] However, even if width reduction is performed by holding down both ends of the rolled material in the width direction, if the rolled material is fed in a meandering manner or if there is a change in the width of the rolled material, , the amount of protrusion from the presser roll in the width direction of the sheet may be greater than a predetermined value, and if it is too large, the protruding portion will buckle due to the width reduction, and if it is too small, the predetermined width reduction cannot be performed. Edge drop cannot be improved sufficiently.

In view of the above-mentioned circumstances, the present invention has been made with the object of sufficiently preventing buckling of the rolled material and improving edge drop even when meandering or width fluctuation occurs in the rolled material. It is something.

[Means for Solving the Problems] The present invention provides a frame body comprising a vertical roll for width-reducing both ends of a rolled material in the width direction and a presser roll for pressing the vicinity of both ends of the rolled material from the front and back surfaces of the rolled material, and a gap adjustment device attached to the frame body to adjust the gap between the vertical roll and the presser roll; and a constant pressure controllable device that moves the frame body in the width direction of the rolled material and presses the vertical roll against the rolled material with a constant pressure. It is equipped with a fluid pressure cylinder.

[Operation] The gap between the vertical roll and the presser roll is adjusted by the co-gap adjustment device, the presser roll presses the vicinity of both ends in the width direction of the rolled material from the front and back surfaces of the rolled material, and the frame body is moved in the width direction by the fluid pressure cylinder. The vertical rolls are moved and pressed against both ends of the rolled material in the width direction with a constant pressure, and the width of the rolled material is reduced by constant pressure control.

[Example] Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.

FIGS. 1 and 2 show an embodiment of the present invention, in which a running trolley 4 is mounted on a rail 2 laid in the width direction of a rolled material 1 and is capable of running on the rail 2 via wheels 3. is arranged,
An underframe 5 is fixed onto the traveling carriage 4. Further, struts 6 are erected on both sides of the rolled material 1 on the underframe 5 in the width direction, and a guide member 7 extending in the width direction of the rolled material 1 is fixed on the support θ.

A groove-shaped guide part 8 is provided on the underframe 5 in parallel with the rail 2, and an underframe 9 is fitted into the guide part 8 so as to be able to move in the width direction of the rolled material 1. A nut 11 is fitted into a support member 10 fixed to the lower surface of the frame 9, and
The electric motor 12 arranged above has a screw shaft 1 parallel to the rail 2.
3 are connected, and the threaded portion of the screw shaft 13 is connected to the nut 11.
It is screwed together.

A frame body 15 that can move in the width direction of the rolled material 1 is disposed on a guide member 14 laid on the underframe 9 in parallel with the rail 2, and the frame body X5 is horizontally attached to the underframe 9. The rolled material 1 can be moved in the width direction by a fluid pressure cylinder 16, and a guide member 17 fixed to the side of the frame 15 in parallel with the guide member 14 is provided with a vertical roll shaft box 18 or a rolled material. They are fitted together so that they can move in one width direction.

A vertical shaft 19 that is vertically movable is fitted into the vertical roll shaft box 18, and a rotatable vertical roll 20 is fitted onto the vertical shaft 19. Further, a screw shaft 21 is fixed to the upper end of the vertical shaft 19, and by rotating a nut 22, the vertical roll 20 can be oscillated up and down. Further, a screw shaft 24 for gap adjustment is connected to a bracket 23 fixed on the vertical roll shaft box 18 in parallel with the fluid pressure cylinder 1B, and the screw shaft 24 is connected to a bush 25 attached to the frame 15.
It penetrates through and can be moved forward and backward in the axial direction by a nut 26.

Vertical fluid pressure cylinder 27 arranged above the frame 15
A rotatable upper presser roll 28 is attached to the lower end of the piston rod via an axle box 30, and a rotatable upper presser roll 29 is attached to the lower part of the frame 15 so as to be located directly below the upper presser roll 28. is arranged, and an upper upper presser roll 28.
29 can hold down the vicinity of both ends of the rolled material 1 in the width direction.

A plurality of vertically oriented fluid pressure cylinders 31 are arranged between the front and rear guide members 7.7 at required intervals in the width direction of the rolled material 1,
An axle box 3 is provided at the lower end of the piston rond of each fluid pressure cylinder 31.
A rotatable upper presser roll 33 is disposed via the underframe 5, and a rotatable lower presser roll 34 is disposed above the upper presser roll 33 to be positioned above the upper presser roll 33. The rolled material 1 can be held down by the rolls 33 and 34.

In the figure, 35 is a guide roller that rolls along the guide member 7 when the frame 15 moves.

When reducing the width of the rolled material 1, the electric motor 12 is driven to rotate the screw shaft 13. Since the nut 11 is screwed onto the screw shaft 13, when the screw shaft 13 rotates, the underframe 9 moves in the width direction of the rolled material 1, and the underframe 9 is positioned at a desired position. Since the screw shaft 13 has reverse threads at both ends in the width direction of the rolled material l, the left and right underframes 9 (only the left side is shown in FIG. 1) are arranged so that the underframes 5 move toward or away from each other as the screw shaft 13 rotates.
Slide the guide part 8 of.

Further, the left and right frames 15 are slid along the guide member 14 in the width direction of the rolled material l by the fluid pressure cylinder 16, and the frame bodies 15
is placed in a predetermined position to set the interval between the left and right vertical rolls 20 to a predetermined interval that matches the board width, and by rotating the nut 26, the screw shaft 24 is advanced or retracted to move the vertical roll shaft box 18.
is moved JH along the guide member 17 in the width direction of the rolled material 1, and the gap G between the vertical roll 2o and the side surface of the upper and lower inserted rolls 33 and 34 is adjusted according to the plate thickness, material, etc., and the fluid pressure cylinder 2
7.31 lowers the upper presser rolls 28.33, adjusts the gap between the upper and lower insert rolls 2g, 33, 29.34 to the thickness of the rolled material 1, and transfers the rolled material 1 sent to the left and right vertical rolls. 20 space and top and bottom insert roll 2L33.29.34
A plate is passed between the two to reduce the width of the rolled material 1. During width reduction, the pressure of the pressure oil supplied to the fluid pressure cylinder 16 is controlled to a constant pressure (constant pressure control). The force of the fluid pressure cylinder 16 is applied to the rolled material 1 by the vertical rolls 2o via the frame 15, the screw 24, the vertical roll shaft box 8, and the vertical shaft 19.

When the rolled material 1 meanderes or changes in strip width, the fluid pressure cylinder I6 performs constant pressure control, so the frame 15 moves forward or backward depending on the amount of meandering or variation in strip width, and therefore the rolled material 1 Both ends in the width direction are always pressed down with a constant force,
Further, as the frame body 15 moves, the vertical roll 20 and the upper and lower insert rolls 28 and 29 also move together, so that the gap G is always maintained at a constant gap. Therefore, buckling does not occur at both ends of the rolled material 1 due to width reduction, edge drop can be reduced, and width reduction will not become impossible due to meandering or sheet width fluctuation.

When the rolled material 1 is a narrow material, the upper and lower insertion slots 33
．． 34 may not be used.

It should be noted that the present invention is not limited to the above-described embodiments, and it goes without saying that various changes may be made without departing from the gist of the present invention.

[Effects of the Invention] According to the edger device of the present invention, the gap between the vertical roll and the upper and lower insertion rolls at both ends of the rolled material in the width direction can be maintained even when meandering or width fluctuation occurs in the rolled material. Since the pressure can be maintained constant and the width reduction can be performed at a constant pressure, buckling does not occur in the rolled material and edge drops at both ends in the width direction of the rolled material can be reduced, which is an excellent effect. .

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of an embodiment of the edger device of the present invention;
FIG. 2 is a view taken along the arrows ``--'' in FIG. 1. In the figure, 1 is a rolled material, 4 is a traveling truck, 5 is an underframe, 9 is an underframe,
I2 is an electric motor, 13 is a screw shaft, 15 is a frame, I6 is a fluid pressure cylinder, 2o is a vertical roll, 24 is a screw shaft, 25 is a bush, 26 is a nut, 27 is a fluid pressure cylinder, 28 is an upper presser roll, 29 is a lower presser roll, 31 is a fluid pressure cylinder, 33 is an upper presser roll, and 34 is a lower presser roll.

Claims (1)

[Claims] 1) A frame body equipped with a vertical roll that rolls down both ends of the rolled material in the width direction, and a presser roll that presses the vicinity of both ends of the rolled material from the front and back surfaces of the rolled material, and the vertical roll and the presser roll that are attached to the frame body. and a fluid pressure cylinder capable of constant pressure control that moves the frame body in the width direction of the rolled material and presses the vertical rolls against the rolled material at a constant pressure. Device.